98 static int acpi_video_bus_add(struct acpi_device *device);
99 static int acpi_video_bus_remove(struct acpi_device *device);
100 static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
158 	struct acpi_device *device;  member
233 				   struct acpi_video_device *device);
235 static int acpi_video_device_lcd_set_level(struct acpi_video_device *device,
238 			struct acpi_video_device *device,
240 static int acpi_video_get_next_level(struct acpi_video_device *device,
301 	struct acpi_device *device = cooling_dev->devdata;  in video_get_max_state()  local
302 	struct acpi_video_device *video = acpi_driver_data(device);  in video_get_max_state()
311 	struct acpi_device *device = cooling_dev->devdata;  in video_get_cur_state()  local
312 	struct acpi_video_device *video = acpi_driver_data(device);  in video_get_cur_state()
330 	struct acpi_device *device = cooling_dev->devdata;  in video_set_cur_state()  local
331 	struct acpi_video_device *video = acpi_driver_data(device);  in video_set_cur_state()
355 acpi_video_device_lcd_query_levels(struct acpi_video_device *device,  in acpi_video_device_lcd_query_levels()  argument
365 	status = acpi_evaluate_object(device->dev->handle, "_BCL", NULL, &buffer);  in acpi_video_device_lcd_query_levels()
386 acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)  in acpi_video_device_lcd_set_level()  argument
391 	status = acpi_execute_simple_method(device->dev->handle,  in acpi_video_device_lcd_set_level()
398 	device->brightness->curr = level;  in acpi_video_device_lcd_set_level()
399 	for (state = 2; state < device->brightness->count; state++)  in acpi_video_device_lcd_set_level()
400 		if (level == device->brightness->levels[state]) {  in acpi_video_device_lcd_set_level()
401 			if (device->backlight)  in acpi_video_device_lcd_set_level()
402 				device->backlight->props.brightness = state - 2;  in acpi_video_device_lcd_set_level()
590 acpi_video_bqc_value_to_level(struct acpi_video_device *device,  in acpi_video_bqc_value_to_level()  argument
595 	if (device->brightness->flags._BQC_use_index) {  in acpi_video_bqc_value_to_level()
601 		if (device->brightness->flags._BCL_reversed)  in acpi_video_bqc_value_to_level()
602 			bqc_value = device->brightness->count - 3 - bqc_value;  in acpi_video_bqc_value_to_level()
604 		level = device->brightness->levels[bqc_value + 2];  in acpi_video_bqc_value_to_level()
615 acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,  in acpi_video_device_lcd_get_level_current()  argument
621 	if (device->cap._BQC || device->cap._BCQ) {  in acpi_video_device_lcd_get_level_current()
622 		char *buf = device->cap._BQC ? "_BQC" : "_BCQ";  in acpi_video_device_lcd_get_level_current()
624 		status = acpi_evaluate_integer(device->dev->handle, buf,  in acpi_video_device_lcd_get_level_current()
636 			*level = acpi_video_bqc_value_to_level(device, *level);  in acpi_video_device_lcd_get_level_current()
638 			for (i = 2; i < device->brightness->count; i++)  in acpi_video_device_lcd_get_level_current()
639 				if (device->brightness->levels[i] == *level) {  in acpi_video_device_lcd_get_level_current()
640 					device->brightness->curr = *level;  in acpi_video_device_lcd_get_level_current()
650 			device->cap._BQC = device->cap._BCQ = 0;  in acpi_video_device_lcd_get_level_current()
661 			device->cap._BQC = device->cap._BCQ = 0;  in acpi_video_device_lcd_get_level_current()
665 	*level = device->brightness->curr;  in acpi_video_device_lcd_get_level_current()
670 acpi_video_device_EDID(struct acpi_video_device *device,  in acpi_video_device_EDID()  argument
682 	if (!device)  in acpi_video_device_EDID()
691 	status = acpi_evaluate_object(device->dev->handle, "_DDC", &args, &buffer);  in acpi_video_device_EDID()
742 	status = acpi_execute_simple_method(video->device->handle, "_DOS",  in acpi_video_bus_DOS()
767 static int acpi_video_bqc_quirk(struct acpi_video_device *device,  in acpi_video_bqc_quirk()  argument
770 	struct acpi_video_device_brightness *br = device->brightness;  in acpi_video_bqc_quirk()
785 	result = acpi_video_device_lcd_set_level(device, test_level);  in acpi_video_bqc_quirk()
789 	result = acpi_video_device_lcd_get_level_current(device, &level, true);  in acpi_video_bqc_quirk()
803 			device->cap._BQC = device->cap._BCQ = 0;  in acpi_video_bqc_quirk()
821 acpi_video_init_brightness(struct acpi_video_device *device)  in acpi_video_init_brightness()  argument
831 	if (!ACPI_SUCCESS(acpi_video_device_lcd_query_levels(device, &obj))) {  in acpi_video_init_brightness()
904 	device->brightness = br;  in acpi_video_init_brightness()
909 	if (!device->cap._BQC)  in acpi_video_init_brightness()
912 	result = acpi_video_device_lcd_get_level_current(device,  in acpi_video_init_brightness()
917 	result = acpi_video_bqc_quirk(device, max_level, level_old);  in acpi_video_init_brightness()
924 	if (!device->cap._BQC)  in acpi_video_init_brightness()
927 	level = acpi_video_bqc_value_to_level(device, level_old);  in acpi_video_init_brightness()
941 	result = acpi_video_device_lcd_set_level(device, level);  in acpi_video_init_brightness()
955 	device->brightness = NULL;  in acpi_video_init_brightness()
971 static void acpi_video_device_find_cap(struct acpi_video_device *device)  in acpi_video_device_find_cap()  argument
973 	if (acpi_has_method(device->dev->handle, "_ADR"))  in acpi_video_device_find_cap()
974 		device->cap._ADR = 1;  in acpi_video_device_find_cap()
975 	if (acpi_has_method(device->dev->handle, "_BCL"))  in acpi_video_device_find_cap()
976 		device->cap._BCL = 1;  in acpi_video_device_find_cap()
977 	if (acpi_has_method(device->dev->handle, "_BCM"))  in acpi_video_device_find_cap()
978 		device->cap._BCM = 1;  in acpi_video_device_find_cap()
979 	if (acpi_has_method(device->dev->handle, "_BQC")) {  in acpi_video_device_find_cap()
980 		device->cap._BQC = 1;  in acpi_video_device_find_cap()
981 	} else if (acpi_has_method(device->dev->handle, "_BCQ")) {  in acpi_video_device_find_cap()
983 		device->cap._BCQ = 1;  in acpi_video_device_find_cap()
986 	if (acpi_has_method(device->dev->handle, "_DDC"))  in acpi_video_device_find_cap()
987 		device->cap._DDC = 1;  in acpi_video_device_find_cap()
1002 	if (acpi_has_method(video->device->handle, "_DOS"))  in acpi_video_bus_find_cap()
1004 	if (acpi_has_method(video->device->handle, "_DOD"))  in acpi_video_bus_find_cap()
1006 	if (acpi_has_method(video->device->handle, "_ROM"))  in acpi_video_bus_find_cap()
1008 	if (acpi_has_method(video->device->handle, "_GPD"))  in acpi_video_bus_find_cap()
1010 	if (acpi_has_method(video->device->handle, "_SPD"))  in acpi_video_bus_find_cap()
1012 	if (acpi_has_method(video->device->handle, "_VPO"))  in acpi_video_bus_find_cap()
1029 	dev = acpi_get_pci_dev(video->device->handle);  in acpi_video_bus_check()
1044 				acpi_device_bid(video->device));  in acpi_video_bus_check()
1104 acpi_video_bus_get_one_device(struct acpi_device *device,  in acpi_video_bus_get_one_device()  argument
1113 	    acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);  in acpi_video_bus_get_one_device()
1122 	strcpy(acpi_device_name(device), ACPI_VIDEO_DEVICE_NAME);  in acpi_video_bus_get_one_device()
1123 	strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);  in acpi_video_bus_get_one_device()
1124 	device->driver_data = data;  in acpi_video_bus_get_one_device()
1128 	data->dev = device;  in acpi_video_bus_get_one_device()
1222 		       struct acpi_video_device *device)  in acpi_video_device_bind()  argument
1229 		if (device->device_id == (ids->value.int_val & 0xffff)) {  in acpi_video_device_bind()
1230 			ids->bind_info = device;  in acpi_video_device_bind()
1236 static bool acpi_video_device_in_dod(struct acpi_video_device *device)  in acpi_video_device_in_dod()  argument
1238 	struct acpi_video_bus *video = device->video;  in acpi_video_device_in_dod()
1251 		    (device->device_id & 0xfff))  in acpi_video_device_in_dod()
1279 	status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer);  in acpi_video_device_enumerate()
1331 acpi_video_get_next_level(struct acpi_video_device *device,  in acpi_video_get_next_level()  argument
1338 	for (i = 2; i < device->brightness->count; i++) {  in acpi_video_get_next_level()
1339 		l = device->brightness->levels[i];  in acpi_video_get_next_level()
1348 	for (i = 2; i < device->brightness->count; i++) {  in acpi_video_get_next_level()
1349 		l = device->brightness->levels[i];  in acpi_video_get_next_level()
1378 	struct acpi_video_device *device = container_of(to_delayed_work(work),  in acpi_video_switch_brightness()  local
1381 	int event = device->switch_brightness_event;  in acpi_video_switch_brightness()
1388 	if (!device->brightness)  in acpi_video_switch_brightness()
1391 	result = acpi_video_device_lcd_get_level_current(device,  in acpi_video_switch_brightness()
1397 	level_next = acpi_video_get_next_level(device, level_current, event);  in acpi_video_switch_brightness()
1399 	result = acpi_video_device_lcd_set_level(device, level_next);  in acpi_video_switch_brightness()
1402 		backlight_force_update(device->backlight,  in acpi_video_switch_brightness()
1410 int acpi_video_get_edid(struct acpi_device *device, int type, int device_id,  in acpi_video_get_edid()  argument
1419 	if (!device || !acpi_driver_data(device))  in acpi_video_get_edid()
1422 	video = acpi_driver_data(device);  in acpi_video_get_edid()
1480 			   struct acpi_device *device)  in acpi_video_bus_get_devices()  argument
1492 	list_for_each_entry(dev, &device->children, node) {  in acpi_video_bus_get_devices()
1522 static void acpi_video_bus_notify(struct acpi_device *device, u32 event)  in acpi_video_bus_notify()  argument
1524 	struct acpi_video_bus *video = acpi_driver_data(device);  in acpi_video_bus_notify()
1562 	if (acpi_notifier_call_chain(device, event, 0))  in acpi_video_bus_notify()
1589 	struct acpi_device *device = NULL;  in acpi_video_device_notify()  local
1597 	device = video_device->dev;  in acpi_video_device_notify()
1628 	acpi_notifier_call_chain(device, event, 0);  in acpi_video_device_notify()
1656 	dev_info(&video->device->dev, "Restoring backlight state\n");  in acpi_video_resume()
1671 	struct acpi_device *device = context;  in acpi_video_bus_match()  local
1675 	if (handle == device->handle)  in acpi_video_bus_match()
1688 static void acpi_video_dev_register_backlight(struct acpi_video_device *device)  in acpi_video_dev_register_backlight()  argument
1693 	struct device *parent = NULL;  in acpi_video_dev_register_backlight()
1702 	if (!acpi_video_device_in_dod(device)) {  in acpi_video_dev_register_backlight()
1703 		dev_dbg(&device->dev->dev, "not in _DOD list, ignore\n");  in acpi_video_dev_register_backlight()
1707 	result = acpi_video_init_brightness(device);  in acpi_video_dev_register_backlight()
1715 	acpi_get_parent(device->dev->handle, &acpi_parent);  in acpi_video_dev_register_backlight()
1725 	props.max_brightness = device->brightness->count - 3;  in acpi_video_dev_register_backlight()
1726 	device->backlight = backlight_device_register(name,  in acpi_video_dev_register_backlight()
1728 						      device,  in acpi_video_dev_register_backlight()
1732 	if (IS_ERR(device->backlight))  in acpi_video_dev_register_backlight()
1739 	device->backlight->props.brightness =  in acpi_video_dev_register_backlight()
1740 			acpi_video_get_brightness(device->backlight);  in acpi_video_dev_register_backlight()
1742 	device->cooling_dev = thermal_cooling_device_register("LCD",  in acpi_video_dev_register_backlight()
1743 				device->dev, &video_cooling_ops);  in acpi_video_dev_register_backlight()
1744 	if (IS_ERR(device->cooling_dev)) {  in acpi_video_dev_register_backlight()
1751 		device->cooling_dev = NULL;  in acpi_video_dev_register_backlight()
1755 	dev_info(&device->dev->dev, "registered as cooling_device%d\n",  in acpi_video_dev_register_backlight()
1756 		 device->cooling_dev->id);  in acpi_video_dev_register_backlight()
1757 	result = sysfs_create_link(&device->dev->dev.kobj,  in acpi_video_dev_register_backlight()
1758 			&device->cooling_dev->device.kobj,  in acpi_video_dev_register_backlight()
1762 	result = sysfs_create_link(&device->cooling_dev->device.kobj,  in acpi_video_dev_register_backlight()
1763 			&device->dev->dev.kobj, "device");  in acpi_video_dev_register_backlight()
1805 static void acpi_video_dev_unregister_backlight(struct acpi_video_device *device)  in acpi_video_dev_unregister_backlight()  argument
1807 	if (device->backlight) {  in acpi_video_dev_unregister_backlight()
1808 		backlight_device_unregister(device->backlight);  in acpi_video_dev_unregister_backlight()
1809 		device->backlight = NULL;  in acpi_video_dev_unregister_backlight()
1811 	if (device->brightness) {  in acpi_video_dev_unregister_backlight()
1812 		kfree(device->brightness->levels);  in acpi_video_dev_unregister_backlight()
1813 		kfree(device->brightness);  in acpi_video_dev_unregister_backlight()
1814 		device->brightness = NULL;  in acpi_video_dev_unregister_backlight()
1816 	if (device->cooling_dev) {  in acpi_video_dev_unregister_backlight()
1817 		sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling");  in acpi_video_dev_unregister_backlight()
1818 		sysfs_remove_link(&device->cooling_dev->device.kobj, "device");  in acpi_video_dev_unregister_backlight()
1819 		thermal_cooling_device_unregister(device->cooling_dev);  in acpi_video_dev_unregister_backlight()
1820 		device->cooling_dev = NULL;  in acpi_video_dev_unregister_backlight()
1844 static void acpi_video_dev_add_notify_handler(struct acpi_video_device *device)  in acpi_video_dev_add_notify_handler()  argument
1847 	struct acpi_device *adev = device->dev;  in acpi_video_dev_add_notify_handler()
1850 					     acpi_video_device_notify, device);  in acpi_video_dev_add_notify_handler()
1854 		device->flags.notify = 1;  in acpi_video_dev_add_notify_handler()
1874 			"%s/video/input0", acpi_device_hid(video->device));  in acpi_video_bus_add_notify_handler()
1876 	input->name = acpi_device_name(video->device);  in acpi_video_bus_add_notify_handler()
1880 	input->dev.parent = &video->device->dev;  in acpi_video_bus_add_notify_handler()
2000 static int acpi_video_bus_add(struct acpi_device *device)  in acpi_video_bus_add()  argument
2007 				device->parent->handle, 1,  in acpi_video_bus_add()
2009 				device, NULL);  in acpi_video_bus_add()
2025 	if (!strcmp(device->pnp.bus_id, "VID")) {  in acpi_video_bus_add()
2027 			device->pnp.bus_id[3] = '0' + instance;  in acpi_video_bus_add()
2031 	if (!strcmp(device->pnp.bus_id, "VGA")) {  in acpi_video_bus_add()
2033 			device->pnp.bus_id[3] = '0' + instance;  in acpi_video_bus_add()
2037 	video->device = device;  in acpi_video_bus_add()
2038 	strcpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);  in acpi_video_bus_add()
2039 	strcpy(acpi_device_class(device), ACPI_VIDEO_CLASS);  in acpi_video_bus_add()
2040 	device->driver_data = video;  in acpi_video_bus_add()
2050 	error = acpi_video_bus_get_devices(video, device);  in acpi_video_bus_add()
2055 	       ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),  in acpi_video_bus_add()
2074 	device->driver_data = NULL;  in acpi_video_bus_add()
2079 static int acpi_video_bus_remove(struct acpi_device *device)  in acpi_video_bus_remove()  argument
2084 	if (!device || !acpi_driver_data(device))  in acpi_video_bus_remove()
2087 	video = acpi_driver_data(device);  in acpi_video_bus_remove()
2106 	if (dev->device == 0x00D1)  in is_i740()
2108 	if (dev->device == 0x7000)  in is_i740()